Boeing whistleblower raises doubts over 787 oxygen system • Hacker News Board

Re: Boeing whistleblower raises doubts over 787 oxygen system

#221

Post by LegitShady » Mon, Nov 11, 2019, 4:34 PM UTC

piva00 wrote: post #47

londons_explore wrote: post #46

Earlier quoted context omitted.

One ends up with the most rounded view of the world by reviewing media with many different slants and biases and assuming the truth probably lies somewhere between all the biased news stories.

That is what I strive to do, I've lived too many years almost blindingly trusting what are considered good sources. Being critical and sourcing from different angles on the same issue has helped me a lot on the past 5-6 years to get a more nuanced worldview.

Everyone knows you will accept at least half a lie as mid ground, then. Nuanced and full of lies.

Re: Boeing whistleblower raises doubts over 787 oxygen system

#222

Post by VVertigo » Mon, Nov 11, 2019, 6:02 PM UTC

magduf wrote: post #215

KoftaBob wrote: post #139

The market would benefit massively from another entrant to the space, eliminating this Boeing + Airbus duopoly. If there's any entity that's proven they can tackle capital intensive aerospace markets as a new player, it's SpaceX. I know they're waiting for battery energy density to improve so that they can launch supersonic electric jets, but regular jets that use jet fuel wouldn't be a horrible stopgap.

We already have several other players that have experience building aircraft: Bombardier and Mitsubishi come to mind, and China has a manufacturer that's keen on challenging the duopoly with their jet too. Don't forget, building a jet isn't that big a deal. Boeing doesn't even make the 737MAX fuselage! It's built by a company called Spirit in Kansas. Boeing doesn't make the engines either, of course (no aircraft manu…

Bombardier has already tried: they ended up partnering with Airbus to market the C-series (now A220).

Re: Boeing whistleblower raises doubts over 787 oxygen system

#223

Post by torgian » Wed, Nov 20, 2019, 6:41 AM UTC

sandworm101 wrote: post #220

torgian wrote: post #219

Earlier quoted context omitted.

I remember this on a flight to an airbase in Catania, Sicily. Overnight flight, we were given drinks, then turbulence hit with the hand of Thor. I'm pretty sure we dropped about 500 feet straight down, but all I remember was being amazed how my cup of pepsi stayed on my tray and didn't fall over.

If the pepsi was still in your cup, you were still at some degree of positive "g". Anything below about 0.5 will cause people to start screaming. True falling is 0g. But things suddenly get very bad at even the slightest negative g. At -0.1g your pepsi is levitating out of the cup, the 100lb drink cart is now airborne, and a second later it all comes crashing down.

I remember having some sort of feeling "negative-g" at that time (and plenty of people were screaming!) but we probably did have some amount of positive G. Probably not much though.